Why doesn't the changed event work when the TextButton changes text?

I was confident that using the Changed event would work, as when the text changes in the TextButton it triggers and it prints 'Hello'. This is a simple script, but I can't understand why it isn't working. (I'm making a player searching tool, I want to trigger the event of when the text is changed to figure out if the player is in the game or not)

Here is my code:

local text = ""
local player =game.Players

script.Parent.enterUsername.Changed:Connect(function()
	if game.Players:FindFirstChild(script.Parent.enterUsername.Text)then
		print("Hello")
	end
end)

I'm guessing that you're trying to call a function when a textbox's text changed. You'd need to use GetPropertyChangedSignal:

local text = ""
local players = game.Players

script.Parent.enterUsername:GetPropertyChangedSignal("Text"):connect(function()
    if game.Players:FindFirstChild(script.Parent.enterUsername.Text)then
        print("Hello")
    end
end)